One-pot Synthesis of Homogeneous Core-shell ZnS Structures and Their Photocatalytic Properties†

doi:10.7503/cjcu20141093

Abstract

Abstract:

Homogeneous core-shell ZnS structures were synthesized via a one-pot hydrothermal route. Zinc nitrate and thiourea were used as the reactants. Simultaneously, sodium dodecyl sulfate was used as the capping agent. The results show that both the core and shell consist of the same chemical composition. Moreover, the formation and closure degree of the shell can be easily tailored by adjusting reaction time. Under optimal conditions, core-shell ZnS particles with the diameter of about 3 μm can be obtained. Finally, the obtained samples were used as photocatalysts for degradation of methylene blue solution under UV light irradiation. It turns out that the photocatalytic activities of ZnS particles are closely related to their morphology. Furthermore, the degradation efficiency of the core-shell ZnS particles could reach 97.3%.

Key words: Micrometer ZnS, Hydrothermal method, Homogeneous core-shell structure, Photocatalysis

CLC Number:

O649
O614

TrendMD:

HUO Hailing, LÜ Liyun, WANG Hong. One-pot Synthesis of Homogeneous Core-shell ZnS Structures and Their Photocatalytic Properties^†[J]. Chem. J. Chinese Universities, 2015, 36(5): 939.

Figures/Tables 5

Fig.1 SEM image(A), TEM image(B), the profiles of EDS line scans analysis(C) and XRD pattern(D) of the sample prepared at 160 ℃ for 8 h(C) Curvers a, b stand for element Zn and S, respectively; (D) curves a, b stand for ZnS and JCPDS No. 05-0566, respectively.

Fig.2 SEM images of samples prepared at different temperatures for 8 h (A) 130 ℃; (B) 140 ℃; (C) 160 ℃; (D) 180 ℃.

Fig.3 SEM images of samples obtained at 160 ℃ in 1 h(A), 2 h(B), 8 h(C), 22 h(D) and 48 h(E)

Fig.4 Absorption spectra of methylene blue solution in the presence of ZnS sample prepared at 160 ℃ for 8 h under UV light irradiationUV irradiation time/min: a. 0; b. 30; c. 60; d. 90; e. 120; f. 150.

Fig.5 Photodegradation of methylene blue with different ZnS samples(A) and UV-Vis absorption spectra of different ZnS samples(B) Reaction time of sample/h: a. 8; b. 22; c. 48.

References 24

[1]	Hosein I., D. , Liddell C., M. , Langmuir, 2007, 23( 5), 2892- 2897
[2]	Wang, H. , Chen, L. , Feng, Y. , Chen, H. , Acc. Chem. Res., 2013, 46( 7), 1636- 1646
[3]	Reiss, P. , Protiere, M. , Li, L. , Small, 2009, 5( 2), 154- 168
[4]	Debnath, T. , Maity, P. , Ghosh H., N. , Chem. Eur. J., 2014, 20( 41), 13305- 13313
[5]	Cao, Y. , Banin, U. , J. Am. Chem. Soc., 2000, 122( 40), 9692- 9702
[6]	Geng, J. , Song G., H. , J. Mater. Sci., 2013, 48( 2), 636- 643
[7]	Sun, Z. , Yang, Z. , Zhou, J. , Yeung M., H. , Ni, W. , Wu, H. , Wang, J. , Angew. Chem. Int. Ed., 2009, 48( 16), 2881- 2885
[8]	郝彦忠, 孙宝, 罗冲, 范龙雪, 裴娟, 李英品. 高等学校化学学报, 2014, 35( 1), 127- 133
	Hao Y., Z. , Sun, B. , Luo, C. , Fan L., X. , Pei, J. , Li Y., P. , Chem. J. Chinese Universities, 2014, 35( 1), 127- 133
[9]	范晓敏, 邹文君, 顾仁敖, 姚建林. 高等学校化学学报, 2008, 29( 1), 130- 134
	Fan X., M. , Zou W., J. , Gu R., A. , Yao J., L. , Chem. J. Chinese Universities, 2008, 29( 1), 130- 134
[10]	Liu, B. , Zeng H., C. , Small, 2005, 1( 5), 566- 571
[11]	Fang, X. , Zhai, T. , Gautam U., K. , Li, L. , Wu, L. , Bando, Y. , Golberg, D. , Prog. Mater Sci., 2011, 56( 2), 175- 287
[12]	Chen Z., G. , Cheng, L. , Xu H., Y. , Liu J., Z. , Zou, J. , Sekiguchi, T. , Lu G. Q., M. , Cheng H., M. , Adv. Mater., 2010, 22( 21), 2376- 2380
[13]	Kole A., K. , Kumbhakar, P. , Chatterjee, U. , Chem. Phys. Lett., 2014, 591, 93- 98
[14]	Biswas, S. , Kar, S. , Nanotechnology, 2008, 19( 4), 045710
[15]	Wang, Z. , Daemen L., L. , Zhao, Y. , Zha, C. , Downs R., T. , Wang, X. , Wang Z., L. , Hemley R., J. , Nat. Mater., 2005, 4( 12), 922- 927
[16]	Zhang Y., N. , Jiang, D. , He, Z. , Yu Y., W. , Zhang H., B. , Jiang Z., H. , Chem. Res. Chinese Universities, 2014, 30( 1), 176- 180
[17]	Fu Y., Q. , Li L., H. , Wang P., W. , Qu, J. , Fu Y., P. , Wang, H. , Sun J., R. , Chem. Res. Chinese Universities, 2012, 28( 4), 672- 676
[18]	Apte S., K. , Garaje S., N. , Arbuj S., S. , Kale B., B. , Baeg J., O. , Mulik U., P. , Naik S., D. , Amalnerkar D., P. , Gosavi S., W. , J. Mater. Chem., 2011, 21( 48), 19241
[19]	Wang, C. , Ao, Y. , Wang, P. , Zhang, S. , Qian, J. , Hou, J. , Appl. Surf. Sci., 2010, 256( 13), 4125- 4128
[20]	聂龙辉, 黄征青, 徐洪涛, 张旺喜, 杨柏蕊, 方磊, 李帅华. 催化学报, 2012, 33( 7), 1209- 1216
	Nie L., H. , Huang Z., Q. , Xu H., T. , Zhang W., X. , Yang, B.R. , Fang, L. , Li S., H. , Chinese. J. Catal., 2012, 33( 7), 1209- 1216
[21]	Yu, X. , Yu, J. , Cheng, B. , Huang, B. , Chemistry, 2009, 15( 27), 6731- 6739
[22]	Tian, Y. , Huang G., F. , Tang L., J. , Xia M., G. , Huang W., Q. , Ma Z., L. , Mater. Lett., 2012, 83, 104- 107
[23]	Watanabe, T. , Takizawa, T. , Honda, K. , J. Phys. Chem., 1977, 81( 19), 1845- 1851
[24]	Xiong, S. , Xi, B. , Wang, C. , Xu, D. , Feng, X. , Zhu, Z. , Qian, Y. , Adv. Funct. Mater., 2007, 17( 15), 2728- 2738