Preparation and photocatalytic property of carbon nanotubes/BiOBr composite
ZHAO Hong-fei1,2, CHEN Lin1,2, HE Feng-ting1,2, QIN Chu-shuo1, WANG Shuai-jun1,3, ZHAO Chao-cheng1,2, DONG Pei1,2, WANG Yi-xuan1,2, QIAO Shuai1,2, GAO Hai-tao4
1. College of Chemical Engineering, China University of Petroleum(East China), Qingdao 266580, China; 2. State Key Laboratory of Petroleum Pollution Control and Treatment, Beijing 102206, China; 3. School of Engineering, Edith Cowan University, Joondalup WA 6027, Australia; 4. Transportation Surveillence and Emergency Response Center of Shan Dong Province, Jinan 250002, China
Abstract：Trace amount multi-walled carbon nanotubes (MWCNT) modified BiOBr were successfully fabricated via a one-step solvothermal method for efficient and stable degradation of tetracycline hydrochloride (TC). The MWCNT/BiOBr photocatalysts exhibited excellent photocatalytic with low PL intensity, high photocurrent, and small EIS arc at the optimal loading amount of MWCNT 0.01mg (0.001wt%), The significant enhancement of as-prepared MWCNT/BiOBr may be assigned to the high capture electron capability of MWCNT, which not only enhance the absorption of lights but also accelerate the separation of photogenerated charge carriers. Based on the trapping experiment and electron spin resonance (ESR), the possible mechanism of enhancing the photocatalytic activity for the composites was also proposed, in which the ·O2- was deemed to the primary active oxidants.
Gao C, Wei T, Zhang Y, et al. A photoresponsive rutile TiO2 heterojunction with enhanced electron-hole separation for high-performance hydrogen evolution[J]. Advanced Materials, 2019,31(8):e1806596.
[2]
Li S, Hu S, Jiang W, et al. Hierarchical architectures of bismuth molybdate nanosheets onto nickel titanate nanofibers:Facile synthesis and efficient photocatalytic removal of tetracycline hydrochloride[J]. Journal of Colloid and Interface Science, 2018,521:42-49.
[3]
Sun Z, Wang H, Wu Z, et al. g-C3N4 based composite photocatalysts for photocatalytic CO2 reduction[J]. Catalysis Today, 2018,300:160-172.
[4]
Yadav A, Yadav M, Gupta S, et al. Effect of graphene oxide loading on TiO2:Morphological, optical, interfacial charge dynamics-A combined experimental and theoretical study[J]. Carbon, 2019,143:51-62.
[5]
Li Y, Zhang H, Liu P, et al. Cross-linked g-C3N4/rGO nanocomposites with tunable band structure and enhanced visible light photocatalytic activity[J]. Small, 2013,9(19):3336-3344.
[6]
Ling X-L, Wei Y-Z, Zou L-M, et al. Preparation and characterization of hydroxylated multi-walled carbon nanotubes[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2013,421:9-15.
[7]
Xu Y, Huang S, Ji H, et al. Facile synthesis of CNT/AgI with enhanced photocatalytic degradation and antibacterial ability[J]. RSC Advances, 2016,6(9):6905-6914.
[8]
Zhang H F, Shi Y P. Preparation of Fe3O4 nanoparticle enclosure hydroxylated multi-walled carbon nanotubes for the determination of aconitines in human serum samples[J]. Analytica Chimica Acta, 2012,724:54-60.
[9]
Ahmadi M, Ramezani Motlagh H, Jaafarzadeh N, et al. Enhanced photocatalytic degradation of tetracycline and real pharmaceutical wastewater using MWCNT/TiO2 nano-composite[J]. Journal of Environmental Management, 2017,186(Pt 1):55-63.
[10]
Xu Y, Xu H, Wang L, et al. The CNT modified white C3N4 composite photocatalyst with enhanced visible-light response photoactivity[J]. Dalton Transactions, 2013,42(21):7604-7613.
[11]
Zhong Y, Yuan J, Wen J, et al. Earth-abundant NiS co-catalyst modified metal-free mpg-C3N4/CNT nanocomposites for highly efficient visible-light photocatalytic H2 evolution[J]. Dalton Transactions, 2015,44(41):18260-18269.
[12]
Xia J, Di J, Yin S, et al. Improved visible light photocatalytic activity of MWCNT/BiOBr composite synthesized via a reactable ionic liquid[J]. Ceramics International, 2014,40(3):4607-4616.
[13]
Sharma N, Pap Z, Garg S, et al. Hydrothermal synthesis of BiOBr and BiOBr/CNT composites, their photocatalytic activity and the importance of early Bi6O6(OH)3(NO3)3·1.5H2O formation[J]. Applied Surface Science, 2019:143536.
[14]
Liu D, Xie J, Xia Y. Improved photocatalytic activity of MWCNT/BiOBr composite synthesized via interfacial covalent bonding linkage[J]. Chemical Physics Letters, 2019,729:42-48.
[15]
Geng A, Meng L, Han J, et al. Highly efficient visible-light photocatalyst based on cellulose derived carbon nanofiber/BiOBr composites[J]. Cellulose, 2018,25(7):4133-4144.
[16]
Song S, Gao W, Wang X, et al. Microwave-assisted synthesis of BiOBr/graphene nanocomposites and their enhanced photocatalytic activity[J]. Dalton Transactions, 2012,41(34):10472-10476.
[17]
Su M, He C, Zhu L, et al. Enhanced adsorption and photocatalytic activity of BiOI-MWCNT composites towards organic pollutants in aqueous solution[J]. Journal of Hazardous Materials, 2012,229-230:72-82.
[18]
Li S, Hu S, Xu K, et al. A Novel Heterostructure of BiOI Nanosheets Anchored onto MWCNTs with Excellent Visible-Light Photocatalytic Activity[J]. Nanomaterials (Basel), 2017,7(1):22-35.
[19]
Ge L, Han C. Synthesis of MWNTs/g-C3N4 composite photocatalysts with efficient visible light photocatalytic hydrogen evolution activity[J]. Applied Catalysis B:Environmental, 2012,117-118:268-274.
[20]
张问问,陈东辉.片状Bi2O3的制备及其光催化性能[J]. 中国环境科学, 2019,39(5):1961-1966. Zhang W W, Chen D H. Preparation and photocatalytic activity of flake Bi2O3[J]. China Environmental Science, 2019,39(5):1961-1966.
[21]
Bao Y, Chen K. Novel Z-scheme BiOBr/reduced graphene oxide/protonated g-C3N4 photocatalyst:Synthesis, characterization, visible light photocatalytic activity and mechanism[J]. Applied Surface Science, 2018,437:51-61.
[22]
Chen S, Yan R, Zhang X, et al. Photogenerated electron modulation to dominantly induce efficient 2,4-dichlorophenol degradation on BiOBr nanoplates with different phosphate modification[J]. Applied Catalysis B:Environmental, 2017,209:320-328.
[23]
Gao X, Peng W, Tang G, et al. Highly efficient and visible-light-driven BiOCl for photocatalytic degradation of carbamazepine[J]. Journal of Alloys and Compounds, 2018,757:455-465.
[24]
樊佳敏,王磊,刘婷婷,等.普伐他汀的光催化降解性能及机理研究[J]. 中国环境科学, 2018,38(6):2157-2166. Fan J M, Wang L, Liu T T et al. Study on photocatalytic degradation performance and Mechanism of pravastatin[J]. China Environmental Science, 2018,38(6):2157-2166.
[25]
Ji M, Zhang Z, Xia J, et al. Enhanced photocatalytic performance of carbon quantum dots/BiOBr composite and mechanism investigation[J]. Chinese Chemical Letters, 2018,29(6):805-810.
[26]
Liang Z, Yang J, Zhou C, et al. Carbon quantum dots modified BiOBr microspheres with enhanced visible light photocatalytic performance[J]. Inorganic Chemistry Communications, 2018,90:97-100.
[27]
Liu J-Y, Bai Y, Luo P-Y, et al. One-pot synthesis of graphene-BiOBr nanosheets composite for enhanced photocatalytic generation of reactive oxygen species[J]. Catalysis Communications, 2013,42:58-61.
[28]
Qu S, Xiong Y, Zhang J. Graphene oxide and carbon nanodots co-modified BiOBr nanocomposites with enhanced photocatalytic 4-chlorophenol degradation and mechanism insight[J]. Journal of Colloid and Interface Science, 2018,527:78-86.
[29]
柴晴雯,吕艳,张周,等.Cu2O@ZnO复合光催化剂对难生物降解有机物的光降解[J]. 中国环境科学, 2019,39(7):2822-2830. Chai Q W, Lv Y, Zhang Z et al. Photodegradation of difficult biodegradable organic matter by Cu2O@ZnO composite photocatalyst[J]. China Environmental Science, 2019,39(7):2822-2830.
[30]
Wang S, Yan Q, Dong P, et al. Morphology and band structure regulation of graphitic carbon nitride microspheres by solvothermal temperature to boost photocatalytic activity[J]. Applied Physics A, 2018,124(6).
[31]
Zhao C, Wang S, Yan Q, et al. Nitrogen Defects-Rich 0D/2D α-Fe2O3/g-C3N4Z-Scheme Photocatalyst for Enhanced Photooxidation and H2 Evolution Efficiencies[J]. Nano, 2018,13(7):1850086.
[32]
Han W, Li Z, Li Y, et al. The Promoting Role of Different Carbon Allotropes Cocatalysts for Semiconductors in Photocatalytic Energy Generation and Pollutants Degradation[J]. Frontiers in Chemistry, 2017,5:84-99.
