化学混凝-TiO2/g-C3N5光催化降解处理印刷废水

doi:10.19964/j.issn.1006-4990.2024-0064

Abstract

Abstract:

In order to achieve efficient degradation of actual printing wastewater with high chromaticity and high chemical oxygen demand，TiO₂/g-C₃N₅ composite photocatalysts were prepared by a mixed method.The crystal phase，specific surface area，photochemical and electrochemical properties of the composite photocatalysts were characterized by X-ray diffraction （XRD），N₂ adsorption⁃desorption，UV-vis diffuse reflectance spectroscopy（UV-vis DRS），steady⁃state fluorescence spectroscopy（PL），transient photocurrent（TPC） and electrochemical impedance spectroscopy（EIS）.The heterojunction was formed between TiO₂ and g-C₃N₅，which improved the absorption and conversion ability of visible light，broadened the spectral response range，effectively inhibited the recombination of photoelectron-holes，and the specific surface area reached 76.77 m²/g.FeCl₃ and polyacrylamide（PAM） were used as coagulants and coagulant aids to pretreat the actual printing wastewater，and the removal of suspended solids in printing wastewater was achieved.The actual printing wastewater was treated by photocatalysis under the conditions of TiO₂/g-C₃N₅ composite photocatalyst dosage of 0.8 g/L，illumination for 60 min，and printing wastewater pH of 5，the COD removal rate and chroma removal rate of the actual printing wastewater were 94.36% and 96.82%，respectively.After 10 times of recycling，the COD removal rate and chroma removal rate of the TiO₂/g-C₃N₅ composite photocatalyst to the actual printing wastewater were 89.76% and 90.34%，respectively.It still showed good treatment effect.

Key words: TiO₂/g-C₃N₅, photocatalysis, printing wastewater, chemical coagulation, composite photocatalyst

CLC Number:

X703.5

MA Yihong, CHEN Xingtao, TANG Lei. Treatment of printing wastewater by chemical coagulation-TiO₂/g-C₃N₅ photocatalytic degradation[J]. Inorganic Chemicals Industry, 2024, 56(10): 151-158.

Figures/Tables 13

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References 29

1	LIU Chang， CHU Yanyang， WANG Rong，et al.Preparation of lotus⁃leaf⁃like carbon cathode for the electro⁃Fenton oxidation process：Hydrogen peroxide production，various organics degradation and printing wastewater treatment［J］.Journal of Water Process Engineering，2023，52：103596.
2	THUY N T， HOAN N X， VAN THANH D，et al.Application of electrocoagulation for printing wastewater treatment：From laboratory to pilot scale［J］.Journal of Electrochemical Science and Tech⁃nology，2021，12（1）：21-32.
3	XIONG Jiahui， LI Yaxin， PANG Conglin，et al.Removal of pollutants in banknote printing wastewater by mesoporous Fe/SiO₂ prepared from rice husk pyrolytic residues［J］.Environmental Science and Pollution Research，2019，26（16）：16000-16013.
4	SAFWAT S M， HAMED A， ROZAIK E.Electrocoagulation/electroflotation of real printing wastewater using copper electrodes：A comparative study with aluminum electrodes［J］.Separation Science and Technology，2019，54（1）：183-194.
5	KHANNOUS L， ELLEUCH A， FENDRI I，et al.Treatment of printing wastewater by a combined process of coagulation and biosorption for a possible reuse in agriculture［J］.Desalination and Water Treatment，2016，57（13）：5723-5729.
6	王艳辉，陈利科，钟云飞.基于MBR生物接触氧化的印刷废水处理工艺研究［J］.数字印刷，2020（1）：77-83.
	WANG Yanhui， CHEN Like， ZHONG Yunfei.Research on printing wastewater treatment technology based on MBR biological contact oxidation［J］.Printing and Digital Media Technology Study，2020（1）：77-83.
7	环境保护部，国家质量监督检验检疫总局. 油墨工业水污染物排放标准：［S］.北京：中国标准出版社，2010.
8	陈淑意.高浓度印刷废水处理工程［J］.节能，2020，39（10）：99-102.
9	潘碌亭，董恒杰，吴超，等.铁碳催化内电解-A/O工艺处理印刷线路板综合废水［J］.环境工程，2017，35（4）：40-44.
	PAN Luting， DONG Hengjie， WU Chao，et al.Treatment of comprehensive wastewater from printed circuit board by iron carbon catalytic internal electrolysis combined with A/O process［J］.Environmental Engineering，2017，35（4）：40-44.
10	林志雄，姚林芬.SY-MBR在印刷行业生产废水处理工程应用［J］.中国资源综合利用，2018，36（6）：63-65.
	LIN Zhixiong， YAO Linfen.Application of SY-MBR in wastewater treatment engineering in printing industry［J］.China Resour⁃ces Comprehensive Utilization，2018，36（6）：63-65.
11	倪亭亭，王云钟，吴永明，等.印刷包装生产废水深度处理工程实例［J］.水处理技术，2021，47（2）：130-132，136.
	NI Tingting， WANG Yunzhong， WU Yongming，et al.Engineering project of advanced treatment of printing and packaging production wastewater［J］.Technology of Water Treatment，2021，47（2）：130-132，136.
12	邹义龙，吴永明，万金保.印刷线路板生产废水处理的应用研究［J］.工业水处理，2019，39（4）：100-103.
	ZOU Yilong， WU Yongming， WAN Jinbao.Application research on printed circuit board industrial wastewater treatment［J］.Industrial Water Treatment，2019，39（4）：100-103.
13	LIU Sile， BU Yifu， CHENG Song，et al.Preparation of g-C₃N₅/g-C₃N₄ heterojunction for methyl orange photocatalytic degradation：Mechanism analysis［J］.Journal of Water Process Engineering，2023，54：104019.
14	BEYHAQI A， AZIMI S M T， CHEN Zhihong，et al.Exfoliated and plicated g-C₃N₄ nanosheets for efficient photocatalytic organic degradation and hydrogen evolution［J］.International Journal of Hydrogen Energy，2021，46（39）：20547-20559.
15	卜义夫，刘思乐，杜文娟，等.二硫化钼/石墨相氮化碳光催化降解印染废水研究［J］.皮革科学与工程，2023，33（3）：12-18.
	BU Yifu， LIU Sile， DU Wenjuan，et al.Study on photocatalytic degradation of printing and dyeing wastewater by molybdenum disulfide/graphite carbon nitride［J］.Leather Science and Engineering，2023，33（3）：12-18.
16	杜瑞成，李燕，王霆，等.纳米TiO₂光催化剂改性研究进展［J］.化学通报，2023，86（10）：1172-1180.
	DU Ruicheng， LI Yan， WANG Ting，et al.Research progress in modification of nano-TiO₂ photocatalyst［J］.Chemistry，2023，86（10）：1172-1180.
17	李权.掺杂金属离子对纳米二氧化钛光催化性能的影响［J］.数字印刷，2020（3）：172-179.
	LI Quan.Effect of doping metal ions on photo catalytic properties of TiO₂ nanoparticles［J］.Digital Printing，2020（3）：172-179.
18	WANG Chun， JIAO Han， YANG Yinbo，et al.Dual⁃functional S-scheme Fe₃O₄/TiO₂/g-C₃N₄ double⁃heterostructure bridged by TiO₂ for collaborative removal of U（Ⅵ） and Sb（Ⅲ）［J］.Journal of Cleaner Production，2023，426：139114.
19	ALBAIDANI K， TIMOUMI A， BELHADJ W，et al.Structural，electronic and optical characteristics of TiO₂ and Cu-TiO₂ thin films produced by sol-gel spin coating［J］.Ceramics International，2023，49（22）：36265-36275.
20	郭湘立，冯艳文，郭勇.Ag-黑纳米TiO₂-电气石可见光催化材料的制备与应用研究［J］.涂料工业，2023，53（10）：55-60，68.
	GUO Xiangli， FENG Yanwen， GUO Yong.Preparation and application of plasma Ag-black nano TiO₂-micro tourmaline visible light catalytic material［J］.Paint & Coatings Industry，2023，53（10）：55-60，68.
21	贾雪莹，王騊.TiO₂纳米棒复合织物的制备及其光催化和抗菌性能［J］.现代纺织技术，2022，30（3）：136-142.
	JIA Xueying， WANG Tao.Preparation of TiO₂ nanorod composite fabric and its photocatalytic and antibacterial properties［J］.Advanced Textile Technology，2022，30（3）：136-142.
22	蒋琦，任姿旭，陈轲，等.S，N共掺杂TiO₂纳米管作为钠离子电池负极的储钠性能［J］.微纳电子技术，2023，60（8）：1201-1210.
	JIANG Qi， REN Zixu， CHEN Ke，et al.Sodium storage performance of S，N co⁃doped TiO₂ nanotubes as anode for sodium ion batteries［J］.Micronanoelectronic Technology，2023，60（8）：1201-1210.
23	林博文，徐亦冬，余德密.MgAl-LDHs/TiO₂复合光催化剂的制备及光催化性能［J］.材料导报，2023，37（19）：40-45.
	LIN Bowen， XU Yidong， YU Demi.Preparation and photocatalytic performance of MgAl-LDHs/TiO₂ composite photocataly⁃st［J］.Materials Reports，2023，37（19）：40-45.
24	ZHANG Qingsong， XIAO Yang， YANG Liu，et al.Branched core⁃shell a-TiO₂@N-TiO₂ nanospheres with gradient⁃doped N for highly efficient photocatalytic applications［J］.Chinese Chemical Letters，2023，34（4）：107628.
25	YANG Xiande， QIN Yijin， WEI Liang，et al.Preparation of AgBr/g-C₃N₅ composite and its enhanced photodegradation for dyes［J］.Inorganic Chemistry Communications，2023，155：110996.
26	SHEN Wanling， LI Yuanyuan， SHEN Changzhi，et al.Enhancing the photo⁃Fenton catalytic activity of g-C₃N₅ under visible light through Z-scheme heterojunction with ferric iron［J］.Journal of Materials Research，2023，38（10）：2775-2786.
27	THARUMAN S， BALAKUMAR V， VINODHINI J，et al.Visible light driven photocatalytic performance of 3D TiO₂/g-C₃N₅ nanocomposite via Z-scheme charge transfer promotion for water purification［J］.Journal of Molecular Liquids，2023，371：121101.
28	LIU Sile， BU Yifu， CHENG Song，et al.Synthesis of TiO₂/g-C₃N₅ heterojunction for photocatalytic degradation of methylene blue wastewater under visible light irradiation：Mechanism analysis［J］.Diamond and Related Materials，2023，136：110062.
29	ZHANG Yuan， CUI Tianyi， ZHAO Jianbo，et al.Fabrication and study of a novel TiO₂/g-C₃N₅ material and photocatalytic properties using methylene blue and tetracycline under visible light［J］.Inorganic Chemistry Communications，2022，143：109815.

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Treatment of printing wastewater by chemical coagulation-TiO₂/g-C₃N₅ photocatalytic degradation

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Treatment of printing wastewater by chemical coagulation-TiO2/g-C3N5 photocatalytic degradation