Photocatalytic degradation of methylene blue by C3N4/ZnO: the effect of the melamine/ZnO ratios

被引:13
作者
Amornpitoksuk, Pongsaton [1 ,2 ]
Suwanboon, Sumetha [3 ]
Sirimahachai, Uraiwan [1 ]
Randorn, Chamnan [4 ]
Yaemsunthorn, Kasidid [4 ]
机构
[1] Prince Songkla Univ, Dept Chem, Fac Sci, Hat Yai 90112, Songkhla, Thailand
[2] Prince Songkla Univ, Fac Sci, Ctr Excellence Innovat Chem, Hat Yai 90112, Songkhla, Thailand
[3] Prince Songkla Univ, Fac Sci, Dept Mat Sci & Technol, Hat Yai 90112, Songkhla, Thailand
[4] Chiang Mai Univ, Dept Chem, Fac Sci, Chiang Mai 50200, Thailand
关键词
C3N4; ZnO; thermal pyrolysis; photocatalysis; ecotoxicity; VISIBLE-LIGHT; G-C3N4/ZNO COMPOSITE; EFFICIENT ADSORPTION; ENHANCEMENT; OXIDATION;
D O I
10.1007/s12034-016-1294-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The C3N4/ZnO composite photocatalysts were synthesized by mechanical milling combined with a calcination process. Various ratios of melamine and ZnO powders were milled by a planetary ball mill for 10 h. After heating at 540(ay)C for 3 h in air, melamine was converted to C3N4 but the formation of C3N4 depended on the ratios of the melamine and ZnO (M/Z) powders. From the experimental results, the conversion of melamine to C3N4 could be inhibited by ZnO particles; as there was no detectable C3N4 in the sample at low M/Z values or high ZnO contents. The photocatalytic activities of prepared samples were investigated under the illumination of blacklight and fluorescent lamps as the low wattage light source. The C3N4 /ZnO showed a better photocatalytic activity than ZnO to degrade a methylene blue (MB) dye solution using blacklight lamps, but there is no significant difference in photocatalytic activities between ZnO and prepared C3N4/ZnO under visible light by the fluorescent lamps. However, the prepared C3N4/ZnO can well function under illumination by Xe lamp as the high power light source. Ecotoxicities of MB solutions before and after photocatalytic process were also studied through growth inhibition of the alga Chlorella vulgaris.
引用
收藏
页码:1507 / 1513
页数:7
相关论文
共 18 条
[1]   Comparison of electrocoagulation using iron and aluminium electrodes with chemical coagulation for the removal of a highly soluble acid dye [J].
Chafi, M. ;
Gourich, B. ;
Essadki, A. H. ;
Vial, C. ;
Fabregat, A. .
DESALINATION, 2011, 281 :285-292
[2]   Significantly enhancement of photocatalytic performances via core-shell structure of ZnO@mpg-C3N4 [J].
Chen, Daimei ;
Wang, Kewei ;
Xiang, Dugao ;
Zong, Ruilong ;
Yao, Wenqing ;
Zhu, Yongfa .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2014, 147 :554-561
[3]   Green chemistry approach for the synthesis of ZnO nanopowders and their cytotoxic effects [J].
Darroudi, Majid ;
Sabouri, Zahra ;
Oskuee, Reza Kazemi ;
Zak, Ali Khorsand ;
Kargar, Hadi ;
Abd Hamid, Mohamad Hasnul Naim .
CERAMICS INTERNATIONAL, 2014, 40 (03) :4827-4831
[4]   A fantastic graphitic carbon nitride (g-C3N4) material: Electronic structure, photocatalytic and photoelectronic properties [J].
Dong, Guoping ;
Zhang, Yuanhao ;
Pan, Qiwen ;
Qiu, Jianrong .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS, 2014, 20 :33-50
[5]   State of Art and recent trends in bulk carbon nitrides synthesis [J].
Goglio, Graziella ;
Foy, Denis ;
Demazeau, Gerard .
MATERIALS SCIENCE & ENGINEERING R-REPORTS, 2008, 58 (06) :195-227
[6]   Synergistic effect of efficient adsorption g-C3N4/ZnO composite for photocatalytic property [J].
Li, Xuefei ;
Li, Ming ;
Yang, Jinghai ;
Li, Xiuyan ;
Hu, Tingjing ;
Wang, Jingshu ;
Sui, Yingrui ;
Wu, Xingtong ;
Kong, Lingnan .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2014, 75 (03) :441-446
[7]   Significantly enhanced visible-light photocatalytic activity of g-C3N4 via ZnO modification and the mechanism study [J].
Liu, Wei ;
Wang, Mingliang ;
Xu, Chunxiang ;
Chen, Shifu ;
Fu, Xianliang .
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2013, 368 :9-15
[8]   Facile synthesis of g-C3N4/ZnO composite with enhanced visible light photooxidation and photoreduction properties [J].
Liu, Wei ;
Wang, Mingliang ;
Xu, Chunxiang ;
Chen, Shifu .
CHEMICAL ENGINEERING JOURNAL, 2012, 209 :386-393
[9]   Comparative degradation of indigo carmine by electrochemical oxidation and advanced oxidation processes [J].
Palma-Goyes, Ricardo E. ;
Silva-Agredo, Javier ;
Gonzalez, Ignacio ;
Torres-Palma, Ricardo A. .
ELECTROCHIMICA ACTA, 2014, 140 :427-433
[10]   Synthesis of Ag/ZnO nanorods array with enhanced photocatalytic performance [J].
Ren, Chunlei ;
Yang, Beifang ;
Wu, Min ;
Xu, Jiao ;
Fu, Zhengping ;
Lv, Yan ;
Guo, Ting ;
Zhao, Yongxun ;
Zhu, Changqiong .
JOURNAL OF HAZARDOUS MATERIALS, 2010, 182 (1-3) :123-129