| nr |
titel |
auteur |
tijdschrift |
jaar |
jaarg. |
afl. |
pagina('s) |
type |
| 1 |
Accurate evaluation on contribution of typical active species for degrading phenolic pollutants in peroxymonosulfate activation system
|
Wang, Xinyu
|
|
|
354 |
P2 |
p.
|
artikel
|
| 2 |
Adsorption of fluoride ion on Al/La modified acidified attapulgite composite materials
|
Sun, Xiangyun
|
|
|
354 |
P2 |
p.
|
artikel
|
| 3 |
Adsorption of steroid hormone micropollutant by polyethersulfone ultrafiltration membranes with varying morphology
|
Lin, Han Ya
|
|
|
354 |
P2 |
p.
|
artikel
|
| 4 |
Adsorption performance of 1,4-dioxane by MCM-22 and Beta zeolites and their bio-zeolite composite system in the presence of co-contaminants
|
Tian, Kun
|
|
|
354 |
P2 |
p.
|
artikel
|
| 5 |
Adsorption promoted heterogeneous catalytic ozonation for removing emerging contaminations: The intrinsic correlations with biochar properties and complementary effect of adsorption and ozonation processes
|
Zhu, Benjie
|
|
|
354 |
P2 |
p.
|
artikel
|
| 6 |
Advanced characterization of polyphenol fixed-bed adsorption kinetics applying flow-injection online analysis
|
Guo, Gaowei
|
|
|
354 |
P2 |
p.
|
artikel
|
| 7 |
Aerogel-based carbon capture materials: Research progress and application prospects
|
Cui, Baolu
|
|
|
354 |
P2 |
p.
|
artikel
|
| 8 |
A green recyclable process for selective recovery of Li and Fe from spent lithium iron phosphate batteries by synergistic effect of deep eutectic solvent and oxygen
|
Zhang, Yaozhi
|
|
|
354 |
P2 |
p.
|
artikel
|
| 9 |
A novel circulating film reactor for enhance degradation efficiency of tetracycline hydrochloride via an Ag-AgVO3@BiVO4/PVDF composite film under visible light irradiation
|
Jian, Jian
|
|
|
354 |
P2 |
p.
|
artikel
|
| 10 |
Antibiotic oxidation and fouling control of ceramic microfiltration membrane through effective heterogeneous electro-Fenton process based on nitrogen-doped carbon nanotubes and Cu-Fe bimetallic oxides
|
Zhang, Zixin
|
|
|
354 |
P2 |
p.
|
artikel
|
| 11 |
Application of a pm-rf-APGD-type plasma brush for deactivation of antibiotics from liquid solutions leads to impaired development of drug resistance by bacterial pathogens
|
Dzimitrowicz, Anna
|
|
|
354 |
P2 |
p.
|
artikel
|
| 12 |
Application of molybdenum sulfide-graphene aerogel for solar energy-driven interfacial evaporation
|
Liu, Xin
|
|
|
354 |
P2 |
p.
|
artikel
|
| 13 |
Application of swirl intensification technology in thermochemical conversion of biomass to high-value bio-oil: A review
|
Zhang, Xianggang
|
|
|
354 |
P2 |
p.
|
artikel
|
| 14 |
A review on catalyst advances for photothermal dry reforming of methane reaction
|
Tian, Xiaoyan
|
|
|
354 |
P2 |
p.
|
artikel
|
| 15 |
Augmented electrochemical extraction lithium performance via interface alloying modification
|
Luo, Guiling
|
|
|
354 |
P2 |
p.
|
artikel
|
| 16 |
Bioethanol production from cassava fed-batch fermentation in pervaporation membrane bioreactor with permeate fractional condensation
|
Jiang, Haoji
|
|
|
354 |
P2 |
p.
|
artikel
|
| 17 |
Boosting acid gas removal from hydrocarbons: Ligand-modified titanium fillers in hybrid membranes
|
Suhaimi, Nadia Hartini
|
|
|
354 |
P2 |
p.
|
artikel
|
| 18 |
Chemistry of zeolites and zeolite based composite membranes as a cutting-edge candidate for removal of organic dyes & heavy metal ions: Progress and future directions
|
Tufail, Muhammad Khurram
|
|
|
354 |
P2 |
p.
|
artikel
|
| 19 |
CO2 mineralization and heavy metal leaching of multi-source ashes from municipal solid waste incineration
|
Cheng, Yiming
|
|
|
354 |
P2 |
p.
|
artikel
|
| 20 |
Constructing nanoconfined spaces in persulfate oxidation processes for efficient degradation of emerging contaminants: Structures, mechanisms, and challenges
|
Chen, Chuchu
|
|
|
354 |
P2 |
p.
|
artikel
|
| 21 |
Construction of 3D/0D Sv-ReS2/ZnCdS hierarchical structure with improved interfacial charge transfer for enhanced photocatalytic hydrogen evolution
|
Huang, Caifeng
|
|
|
354 |
P2 |
p.
|
artikel
|
| 22 |
Construction of magnetic sulfonic-functionalized hypercrosslinked polymers for efficient adsorption of azole fungicides from water
|
Wang, Dongze
|
|
|
354 |
P2 |
p.
|
artikel
|
| 23 |
Copper-incorporated zinc manganite as a novel catalyst for activating peroxymonosulfate in the degradation of tetracycline
|
Zaheer Afzal, Muhammad
|
|
|
354 |
P2 |
p.
|
artikel
|
| 24 |
Core-shell ZnO@FeNi-MOF/BC nanoreactor photocatalyzed efficient selective oxidation—Size exclusion effects and nonradical pathways domination
|
Jia, Litao
|
|
|
354 |
P2 |
p.
|
artikel
|
| 25 |
Deep deoiling technique for solid wastes driven by cyclonic centrifugal force
|
Wu, Jiwei
|
|
|
354 |
P2 |
p.
|
artikel
|
| 26 |
Defect engineering of transition metal oxides and synergistic interaction of two-dimensional conducting metal–organic frameworks for efficient photocatalytic hydrogen evolution
|
Fan, Yumeng
|
|
|
354 |
P2 |
p.
|
artikel
|
| 27 |
Demulsification of steam-assisted gravity drainage (SAGD) emulsions under high temperature and high pressure: Effects of emulsion breaker and reverse emulsion breaker dosages
|
Huang, Yueying
|
|
|
354 |
P2 |
p.
|
artikel
|
| 28 |
Designing bimetallic ionic liquid hybridized molecular sieve adsorbents for efficient ammonia adsorption at high temperature and low content
|
Li, Zhiyong
|
|
|
354 |
P2 |
p.
|
artikel
|
| 29 |
Design, modulation and current advances in energy and environmental applications over In2O3-based photocatalysts
|
Li, Jiadong
|
|
|
354 |
P2 |
p.
|
artikel
|
| 30 |
Development and evaluation of a hybrid membrane condenser for water recovery from cooling tower plume
|
Nurrohman,
|
|
|
354 |
P2 |
p.
|
artikel
|
| 31 |
Direct photo-curing 3D printed bionic multistage Mo-doped tungsten oxide catalysts for static and dynamic oxidative desulfurization of fuels
|
Wu, Yingcheng
|
|
|
354 |
P2 |
p.
|
artikel
|
| 32 |
3D spacer fabric structured airflow channel for enhanced solar desalination with efficient multi-energy harvesting
|
Ge, Can
|
|
|
354 |
P2 |
p.
|
artikel
|
| 33 |
Dynamic control of bottom flash heat pump-assisted extractive distillation process for separating n-hexane and 1,2-dichloroethane
|
Fan, Songdi
|
|
|
354 |
P2 |
p.
|
artikel
|
| 34 |
Editorial Board
|
|
|
|
354 |
P2 |
p.
|
artikel
|
| 35 |
Effect of calcification roasting process on vanadium oxidation and extraction from vanadium titanomagnetite pellets via sulfuric acid Leaching: Mechanism and enhancement
|
Zheng, Yu
|
|
|
354 |
P2 |
p.
|
artikel
|
| 36 |
Effect of inherent alkali and alkaline earth metals in biochar on adsorption of Pb2+ in aqueous solution: Different roles of Na/Mg/K/Ca
|
Jiang, Jiahao
|
|
|
354 |
P2 |
p.
|
artikel
|
| 37 |
Efficiency and mechanism of high surface area mesoporous nanocast NC-LaCoO3 for activating peroxymonosulfate to degrade atrazine in water
|
Afzal, Shahzad
|
|
|
354 |
P2 |
p.
|
artikel
|
| 38 |
Efficient activation of molecular oxygen across a broad pH range (2.5 to 11) utilizing an aluminum-based solid-phase Fenton reagent
|
Wang, Jiaqi
|
|
|
354 |
P2 |
p.
|
artikel
|
| 39 |
Efficient and selective cleavage of lignin C–C bonds under visible light facilitated by the Zn(II)-doped mesoporous graphitic carbon nitride photocatalyst
|
Lin, Xiangyu
|
|
|
354 |
P2 |
p.
|
artikel
|
| 40 |
Efficient evaporation of seawater desalination by novel double-interface evaporator: Photothermal conversion, water transfer and salt-resistant
|
Zhang, Zhe
|
|
|
354 |
P2 |
p.
|
artikel
|
| 41 |
Efficient formaldehyde removal by maximizing adsorption/catalytic sites over graphene-Ce modified TiO2
|
Yan, Xiaoqin
|
|
|
354 |
P2 |
p.
|
artikel
|
| 42 |
Efficient photocatalytic degradation of ethylenethiourea with zinc oxide photocatalysts: Parameters optimization, mechanism insight, exploration of degradation pathways and toxicity assessment
|
Luo, Qiang
|
|
|
354 |
P2 |
p.
|
artikel
|
| 43 |
Efficient removal of Cr(VI) using recycled MgO from laterite nickel ore by fly ash doping
|
Zhang, Liqing
|
|
|
354 |
P2 |
p.
|
artikel
|
| 44 |
Efficient removal of U(VI) by graphene-based electrode modified with amidoxime: Performance and mechanism
|
Shao, Kexin
|
|
|
354 |
P2 |
p.
|
artikel
|
| 45 |
Efficient separation of oil-in-water emulsion using (MgCoNiCuZn)O high-entropy ceramic membrane
|
Li, Chanyuan
|
|
|
354 |
P2 |
p.
|
artikel
|
| 46 |
Efficient vanadium recovery from highly alkaline solution using Lanthanum doped Mg-Al LDH: A promising approach for sustainable resource extraction
|
Bhowmick, Subhamoy
|
|
|
354 |
P2 |
p.
|
artikel
|
| 47 |
Electrospun coarse modified polystyrene/carbon aerogel nanofibrous composite membrane for effective PM2.5 air filtration
|
Huo, Xuying
|
|
|
354 |
P2 |
p.
|
artikel
|
| 48 |
Engineering of paraffin Wax@Expanded graphite with a Yolk-Shell structure for simultaneous photothermal water evaporation and electricity generation
|
Nader, Aisha
|
|
|
354 |
P2 |
p.
|
artikel
|
| 49 |
Enhanced paracetamol degradation via strong covalent coupling of MoOC bonds in C/MoS2 nanocomposites for piezoelectric activation of peroxymonosulfate: Electron bridge and enrichment
|
Huang, Wenbin
|
|
|
354 |
P2 |
p.
|
artikel
|
| 50 |
Enhancement of sludge dewaterability using amphoteric starch-based flocculant coupled with waste synthetic fibers
|
Tian, Ganpei
|
|
|
354 |
P2 |
p.
|
artikel
|
| 51 |
Establishing photocatalysis-self-Fenton system over a S-scheme Fe/Fe2O3@CuBi2O4 for enhancing TC removal via in-situ generating H2O2 and Fe/Cu dual-metal electron cycle: Radical and non-radical pathways
|
Jiang, Min
|
|
|
354 |
P2 |
p.
|
artikel
|
| 52 |
Experimental and statistical physics illumination of Pb(II) adsorption on magnetic chitosan-graphene oxide surface
|
Guo, Ting
|
|
|
354 |
P2 |
p.
|
artikel
|
| 53 |
Experimental and theoretical investigations of zwitterionic hypercrosslinked polymers as robust catalysts for CO2 fixation under cocatalyst- and solvent-free conditions
|
Zhang, Han
|
|
|
354 |
P2 |
p.
|
artikel
|
| 54 |
Fabrication of mechanically stable fabric-based hydrogel membranes based on dual network toughening strategy for high efficient oil–water emulsion separation
|
Hou, Keru
|
|
|
354 |
P2 |
p.
|
artikel
|
| 55 |
Facile peptide-mediated green synthesis of iron hexacyanocobalt nanostructures for efficient intercalative deionization and water disinfection
|
Li, Nan
|
|
|
354 |
P2 |
p.
|
artikel
|
| 56 |
Fluorinated/sulfonated dual-functional three-component covalent organic polymer for adsorption of fluoroquinolones: Preparation, adsorption performance and mechanism
|
Kang, Yingying
|
|
|
354 |
P2 |
p.
|
artikel
|
| 57 |
Green and efficient removal of arsenic and recovery of tin from hazardous waste tin refined copper slag
|
Ma, Jinping
|
|
|
354 |
P2 |
p.
|
artikel
|
| 58 |
Green recycling of spent LiCoO2 cathodes using a water-based deep eutectic solvent
|
Wu, Xi
|
|
|
354 |
P2 |
p.
|
artikel
|
| 59 |
Highly-efficient hydrogen purification with the T-C3N2 membrane via strain and charge engineering as well as their synergistic effect
|
Hou, Qihua
|
|
|
354 |
P2 |
p.
|
artikel
|
| 60 |
High-performance ionic liquid-based membranes employed for efficient recovery of lithium
|
Zhao, Yunze
|
|
|
354 |
P2 |
p.
|
artikel
|
| 61 |
2-Hydroxypropyl-diethylenetriamine (HPDETA)-based nonaqueous absorbents for energy-efficient CO2 capture with high stability and low corrosivity
|
Wu, Yan
|
|
|
354 |
P2 |
p.
|
artikel
|
| 62 |
Inactivation of Microcystis aeruginosa by magnetic cellulose combined with electroaggregation and electrooxidation
|
Zhang, Ze
|
|
|
354 |
P2 |
p.
|
artikel
|
| 63 |
In-Depth study of the adsorptive separation of glucose and xylose with alkaline and alkaline-earth exchanged faujasite zeolites by breakthrough experiments
|
Ammar, Wassim
|
|
|
354 |
P2 |
p.
|
artikel
|
| 64 |
Intercalation of sodium carboxymethyl cellulose with MXene membrane layer spacing regulation and monovalent/divalent ion separation
|
Yang, Ruizhou
|
|
|
354 |
P2 |
p.
|
artikel
|
| 65 |
Interfacial oxygen vacancy engineering of double Z-scheme heterojunction Bi2MoO6/MnWO4/g-C3N4 for efficient photocatalytic degradation of iodohydrin
|
Wu, Jie
|
|
|
354 |
P2 |
p.
|
artikel
|
| 66 |
Metal organic framework derived iron oxides incorporated in thermochemically exfoliated graphene as high-performing anode of Li-ion batteries
|
Fu, Haiyang
|
|
|
354 |
P2 |
p.
|
artikel
|
| 67 |
Micro/nanofluid-based carbon-negative process for capturing CO2 from low-carbon flue gas to produce soda ash: Effects and enhancement mechanisms
|
Yuewei, Fan
|
|
|
354 |
P2 |
p.
|
artikel
|
| 68 |
Modeling of adsorption process on monolith adsorbents: A mini-review
|
Esfandiar Pour, Sina
|
|
|
354 |
P2 |
p.
|
artikel
|
| 69 |
Modulating adsorption-oxidation dual sites and confinement structure of interlayered MnO2/defective rGO nanoreactor for efficient and stable catalytic ozonation of CH3SH
|
Huang, Wenbin
|
|
|
354 |
P2 |
p.
|
artikel
|
| 70 |
Modulating electronic structure and exposed surface area of Cu-based catalysts by Pd doping for enhanced CO2 hydrogenation to methanol
|
Han, Caiyun
|
|
|
354 |
P2 |
p.
|
artikel
|
| 71 |
Molecular weight cut off (MWCO) determination in ultra- and nanofiltration: Review of methods and implications on organic matter removal
|
Imbrogno, A.
|
|
|
354 |
P2 |
p.
|
artikel
|
| 72 |
Nanofiber membranes fabricated by coaxial electrospinning with porous channel structure for high-efficiency oil-water separation
|
Yang, Hongkun
|
|
|
354 |
P2 |
p.
|
artikel
|
| 73 |
New insight into the S and N co-doped poplar biochar for efficient BPA removal via peroxymonosulfate activation: S for adsorptive removal and N for catalytic removal
|
Yu, Xinyan
|
|
|
354 |
P2 |
p.
|
artikel
|
| 74 |
New insights into selective degradation of organic contaminants by Fe3+/persulfate process: Performance, mechanism, and theoretical calculations
|
Cai, Chun
|
|
|
354 |
P2 |
p.
|
artikel
|
| 75 |
N, S-codoped porous biochar derived from bagasse-based polycondensate for high-performance CO2 capture and supercapacitor
|
He, Ge
|
|
|
354 |
P2 |
p.
|
artikel
|
| 76 |
One-time removal of V(V) and Cr(VI) from aqueous solution of different pH by sulphate green rust: The overlooked adsorption and reactivity of Fe (III)-Cr(III) oxides
|
Li, Haidong
|
|
|
354 |
P2 |
p.
|
artikel
|
| 77 |
Optimization of CO2 capturing performance of amino acid-based deep eutectic solvent phase change absorbents: Introducing DBN into HBA
|
Han, Weifang
|
|
|
354 |
P2 |
p.
|
artikel
|
| 78 |
Optimization of the process for separating ethylene glycol and 1,2-butanediol using reactive distillation-assisted separation based on a parallel stochastic algorithm framework
|
Kong, Jie
|
|
|
354 |
P2 |
p.
|
artikel
|
| 79 |
Photochemical transformation altered coagulation behavior and treatability of dissolved organic matters in water
|
Hu, Aibin
|
|
|
354 |
P2 |
p.
|
artikel
|
| 80 |
Preparation and properties of MoS2 and Co double-doped modified PbO2/ZnO-NiO zinc electrowinning composite anode
|
Dai, Zhengming
|
|
|
354 |
P2 |
p.
|
artikel
|
| 81 |
Preparation of active zinc oxide from zinc-containing dust and synergistic recovery process of valuable elements
|
Li, Yan
|
|
|
354 |
P2 |
p.
|
artikel
|
| 82 |
Preparation of formic acid modified industrial zero-valent iron (FA-ZVIbm) for CdII-EDTA removal: CdII capturing and self-enhanced oxidative degradation of EDTA
|
Zhang, Yuhang
|
|
|
354 |
P2 |
p.
|
artikel
|
| 83 |
Preparation of magnetic ionic liquid microemulsion collector by combining simulation and experiment and study of its flotation performance
|
Li, Lin
|
|
|
354 |
P2 |
p.
|
artikel
|
| 84 |
Preventing emulsification during rare earths solvent extraction by the addition of Span 80 to enhance the interfacial stability of the P507 oil droplets
|
Liu, Jie
|
|
|
354 |
P2 |
p.
|
artikel
|
| 85 |
Pulsed electric field-assisted extraction techniques for obtaining vegetable oils and essential oils: Recent progress and opportunities for the food industry
|
Ferraz, Lucas Previtali
|
|
|
354 |
P2 |
p.
|
artikel
|
| 86 |
Rational design of Z-scheme CoS@NC/CdS heterojunction with N doped carbon (NC) as an electron mediator for enhanced photocatalytic H2 evolution
|
Fan, Wenjuan
|
|
|
354 |
P2 |
p.
|
artikel
|
| 87 |
Recovering metallic lead from spent lead paste by slurry electrolysis
|
Huang, Yao
|
|
|
354 |
P2 |
p.
|
artikel
|
| 88 |
Red mud/steel slag three-dimensional electrochemical system for the removal of organic pollutant with Na2S2O3 as electrolyte: Contribution of •OHads
|
Han, Yi
|
|
|
354 |
P2 |
p.
|
artikel
|
| 89 |
Regulating the hydrophilicity and complexation of poly(pyrrole methane) by phenolic hydroxyl groups for efficient Mercury(II) capture
|
Wang, Zhenyu
|
|
|
354 |
P2 |
p.
|
artikel
|
| 90 |
Room temperature thermocatalytic removal of formaldehyde in air using a copper manganite spinel-supported palladium catalyst with ultralow noble metal content
|
Hua, Yongbiao
|
|
|
354 |
P2 |
p.
|
artikel
|
| 91 |
Self-reinforced Synchronization of persulfate activation and photocatalysis by Tri-metal heterojunction catalyst for efficient degradation of Sulfadiazine
|
Liu, Yuting
|
|
|
354 |
P2 |
p.
|
artikel
|
| 92 |
Separation and recovery of elements from drainage water arising in soilless tomato cultivation − Application of electrocoagulation
|
Mielcarek, Artur
|
|
|
354 |
P2 |
p.
|
artikel
|
| 93 |
Sequential assembly enhanced selectivity on magnetic imprinted polymers for specific capture of naringin: A combination of synergistic dual sites and imprinted effect
|
Liu, Shucheng
|
|
|
354 |
P2 |
p.
|
artikel
|
| 94 |
Source and characteristics of inorganic acidic gases and aerosols emission in a semiconductor plant
|
Peng, Jyun-Lun
|
|
|
354 |
P2 |
p.
|
artikel
|
| 95 |
Stable ionic liquid/Zr-MOF co-modified silica microspheres: Facile construction strategy and promising chromatographic applications
|
Zhou, Jiawen
|
|
|
354 |
P2 |
p.
|
artikel
|
| 96 |
Study on electrostatic separation technology and characterization of shrimp shell protein
|
Tian, Yu
|
|
|
354 |
P2 |
p.
|
artikel
|
| 97 |
Sunlight-mediated efficient remediation of organic pollutants from water by nanohybrid of Prussian blue analogue decorated reduced graphene oxide
|
Rani, Manviri
|
|
|
354 |
P2 |
p.
|
artikel
|
| 98 |
Surface oxygen vacancies induced by cu-doping in hexagonal ZnMn2O4 nanoplates for high efficiency photothermocatalytic oxidation of toluene
|
Cheng, Qiang
|
|
|
354 |
P2 |
p.
|
artikel
|
| 99 |
Tailoring the product polarity to facilitate the controllable phase transition of a 2-(ethylamino)ethanol-based nonaqueous absorbent for energy-efficient CO2 capture: An integrated experimental and quantum simulation study
|
Zhou, Xiaobin
|
|
|
354 |
P2 |
p.
|
artikel
|
| 100 |
Tetracycline degradation in the system of peracetic acid activation by liquid discharge plasma
|
Wu, Haixia
|
|
|
354 |
P2 |
p.
|
artikel
|
| 101 |
The heterojunction of NiO/MgFe-LDH promoted degradation of nitrogenous disinfection by-products in electrochemical system via accelerating singlet oxygen generation
|
Jiang, Zhuwu
|
|
|
354 |
P2 |
p.
|
artikel
|
| 102 |
Thermally coupled distillation columns without vapor transfer – Current state and further needs
|
Horsch, Anna Sophia
|
|
|
354 |
P2 |
p.
|
artikel
|
| 103 |
Towards an electrochemically-based circular economy: Electro-refinery for valorizing phenolic wastewater
|
S. S. Castro, Raíra
|
|
|
354 |
P2 |
p.
|
artikel
|
| 104 |
Triazine-based covalent organic framework/ g-C3N4 heterojunction toward highly efficient photoactivation of peroxydisulfate for sulfonamides degradation
|
Qi, Lanyue
|
|
|
354 |
P2 |
p.
|
artikel
|
| 105 |
Tunicate-inspired polyvinylidene fluoride (PVDF) membrane with a robust nanoarmor for corrosive emulsion separation
|
Wu, Jingcheng
|
|
|
354 |
P2 |
p.
|
artikel
|
| 106 |
Turning waste into treasure: Utilizing discarded printer toner-modified wood for efficient solar water evaporation in diverse water environments
|
Zhang, Wei
|
|
|
354 |
P2 |
p.
|
artikel
|
| 107 |
Ultra-high selectivity carbon molecular sieve membrane derived from PI/SPANI blends for efficient gas separation
|
Chen, Jiongcai
|
|
|
354 |
P2 |
p.
|
artikel
|
| 108 |
Unveiling the conformational landscape of tizanidine and its effects on selective nucleation: Enabling controlled manipulation of polymorphs and solvates
|
Wu, Di
|
|
|
354 |
P2 |
p.
|
artikel
|
| 109 |
Visible light-driven selective cleavage of C α -C β or C β -O bond in lignin β-O-4 model into high-value aromatic chemicals over surface modified 2D g-C3N4
|
Tan, Hongzi
|
|
|
354 |
P2 |
p.
|
artikel
|
Tijdschrift beschrijving