Abstract：Fe-doped cadmium sulfide was prepared by hydrothermal method in aqueous solution using cadmium nitrate, ferric nitrate and thiourea as raw materials. The samples were characterized by SEM, XRD, EDS and XPS. The photocatalytic degradation of methylene blue (MB) in aqueous solution was used as a target reaction to evaluate their photocatalytic activity. The experimental results show that the reaction temperature has a great effect on the morphology of cadmium sulfide, and spherical, flowerlike, clustered and rodlike cadmium sulfide are obtained in various reaction temperatures. Among them, the photocatalytic activity of flowerlike CdS is observed to be better than other CdS materials. The XRD indicates that Fe-doped cadmium sulfide is hexagonal crystal structure when the reaction temperature is 160℃. The experimental results also indicate that Fe-doped can obviously improve the photocatalytic activity of cadmium sulfide and when the doping ratio of Fe to Cd is 1:10, the photocatalytic effect is the best of all.
刘阳龙, 郑玉婴, 曹宁宁, 王翔. 水热法合成铁掺杂的硫化镉及光催化性能[J]. 材料工程, 2017, 45(10): 12-17.
LIU Yang-long, ZHENG Yu-ying, CAO Ning-ning, WANG xiang. Synthesis and Photocatalytic Activity of Iron Doped CdS by Hydrothermal Method. Journal of Materials Engineering, 2017, 45(10): 12-17.
 TANG H X,YAN M,ZHANG H,et al, Preparation and characterization of water-soluble CdS nanocrystals by surface modification of ethylene diamine[J]. Materials Letters,2005,59(8/9):1024-1027.
 ALLINSON G, STAGNITTI F, COLVILLE S, et al. Growth of floating aquatic macrophytes in alkaline industrial wastewaters[J]. Journal of Environmental Engineering, 2000, 126(12):1103-1107.
 HODOS M,HORVATH E,HASPEL H,et al. Photosensitization of ion-exchangeable titanate nanotubes by CdS nanoparticles[J]. Chem Phy Lett,2004,399(4/6):512-515.
 LIU Y B. Highly stable CdS-modified short TiO2 nanotube array electrode for efficient visible-light hydrogen generation[J]. International Journal of Hydrogen Energy,2011,36(1):167-174.
 TANG H X,YAH M,ZHANG H,et al. Preparation and characterization of water-souble CdS nanocrystals by surface modification of ethylene diamine[J]. Mater Lett,2005,59(8/9):1024-1027.
 DLAZJ G,PLANELLES J. Theoretical characterization of triangular CdS nanocrystals:a tight-binding approach[J]. Langmuir,2004,20(25):11278-11284.
 TAKAYUKI H,YOKO B,KOMASAWA I. Immobilization of CdS nanoparticles formed in reverse micelles onto aluminosilicate supports and their photocatalytic properties[J]. J Colloid Interface Sci,2005,288(2):513-516.
 SHARKEY J J,DHANASEKARAN V,LEE C W,et al. Microstructural parameters and optical constants of CdS thin films synthesized with various bath temperature[J]. Chem Phys Lett,2011,503(1/3):86-90.
 陈昱,王京钰,李维尊,等. 新型二氧化钛基光催化材料的研究进展[J]. 材料工程, 2016, 44(3):103-113. CHEN Y,WANG J Y,LI W Z,et al. Research process in TiO2-based photocatalysis material[J]. Journal of Materials Engineering,2016, 44(3):103-113.
 XING C J,ZHANG Y J,YAN W,et al. Band structure-controlled solid solution of Cd1-x ZnxS photocatalyst for hydrogen production by water splitting[J]. International Journal of Hydrogen Energy,2006,31(14):2018-2024.
 JANG J S,LI W,LEE J S.Fabrication of CdS/TiO2 nano-bulk composite photocatalysts for hydrogen production from aqueous H2S solution under visible light[J].Chem Phys Lett,2006,425(4/6):278-282.
 HIRAI T,BANDO Y,KOMASAWA I.Immobilization of CdS nanoparticles formed in reverse micelles onto alumina particles and their photocatalytic properties[J].J Phys Chem B,2002,106(35):8967-8970.
 张平, 莫尊理, 张春,等. 磁响应性TiO2/石墨烯纳米复合材料的合成及光催化性能[J]. 材料工程, 2015, 43(3):72-77. ZHANG P,MO Z L,ZHANG C,et al. Preparation and photocatalytic properties of magnetic responsive TiO2/graphene nanocomposites[J]. Journal of Materials Engineering,2015, 43(3):72-77.
 CAO Y C,WANG J. One-pot synthesis of high-quality zinc-blende CdS nanocrystals[J]. J Am Chem Soc,2004,126(44):14336-14337.
 LI J X,XU J H,DAI W L,et al. Direct hydro-alcohol thermal synthesis of special core-shell structured Fe-doped titania microspheres with extended visible light response and enhanced photoactivity[J]. Appl Catal B:Environ,2009,85(3/4):162-170.
 YANG X H,WU Q S,LI L,et al. Controlled synthesis of the semiconductor CdS quasi-nanospheres, nanoshuttles, nanowires and nanotubes by the reverse micelle systems with different surfactants[J]. Colloids and Surfaces A:Physicochem Eng Aspects,2005,264(264):172-178.
 张言波,邵华峰,钱雪峰,等. 单分散球形硫化镉粒子的制备及其形貌控制[J]. 无机材料学报,2005,20(3):575-579. ZHANG Y B,SHAO H F,QIAN X F,et al.Preparation of uniform cadmium sulfide spheres and their controllable morphology[J].Inorg Mater,2005,20(3):575-579.
 GAUTAM U K,SESHADRI R S,RAO C N R. A solvothermal route to CdS nanocrystals[J]. Chem Phys Lett,2003,375(5):560-564.
 XU D,LIU Z,LIANG J,et al. Solvothermal synthesis of CdS nanowires in a mixed solvent of ethylenediamine and dodecanethiol[J]. J Phys Chem B,2005,109(30):14344-14349.
 CAO H Q,WANG G Z,ZHANG S C,et al. Growth and optical properties of wurtzite-type CdS nanocrystals[J]. Inorg Chem,2006,45(13):5103-5108.
 YANG J,ZENG J H,YU S H,et al.Formation process of CdS nanorods via solvothermal route[J]. Chem Mater,2000,12(11):3295-3263.
 JING D W,GUO L J. A novel method for the preparation of a highly stable and active CdS photocatalyst with a special surface nanostructure[J]. J Phys Chem B,2006,110(23):11139-11145.
 SO W,KIM K,MOON S. Photo-production of hydrogen over the CdS-TiO2 nano-composite particulate films treated with TiCl4[J]. Int J Hydrogen Energy,2004,29(3):229-234.
 赵荣祥,李秀萍,徐铸德. 离子液辅助水热法合成树枝状硫化镉及光催化性能[J]. 材料工程,2014(2):7-12. ZHAO R X,LI X P,XU Z D. Synthesis and photocatalytic performance of dendritic CdS nanostructures by an ionic liquid-assisted hydrothermal route[J]. Journal of Materials Engineering,2014(2):7-12.
 钱留琴,唐为华. 水热法制备CdS纳米结构[J]. 功能材料,2009,40(5):861-862. QIAN L Q,TANG W H. Preparation of CdS nanostructures by hydrothermal method[J]. Journal of Functional Materials,2009,40(5):861-862.
 REN X X,ZHAO G L,LI H,et al. The effect of different pH modifier on formation of CdS nanoparticles[J]. Journal of Alloys and Compounds,2008,465(1-2):534-539.
 ZHAI Y G,LIU F Q,ZHANG Q,et al. Synthesis of magnetite nanoparticle aqueous dispersions in an ionic liquid containing acrylic acid anion[J]. Colloids Surf A:Physicochem Eng Aspects,2009,332(2/3):98-102.
 HU B Y,JING Z Z,HUANG J F,et al. Synthesis of hierarchical hollow spherical CdS nanostructures by microwave hydrothermal process[J]. Transactions of Nonferrous Metals Society of China,2012,22(1):89-94.
 XU D,CAO A M,DENG W L. Self-assembly and photocatalytic properties of clustered and flowerlike CdS nanostructures[J]. Acta Phys-Chim Sin,2008,24(7):1219-1224.
 YANG F,YAN N N,HUANG S,et al. Zn-doped CdS nanoarchitectures prepared by hydrothermal synthesis:mechanism for enhanced photocatalytic activity and stability under visible light[J]. Journal of Physical Chemistry,2012,116(16):9078-9084.
 BALRAM T,SINGH F,AVASTHI D K,et al. Structural,optical,electrical and position annihilation studies of CdS:Fe system[J]. Journal of Alloys and Compounds,2008,454(1/2):97-101.
 NAKANISHI T,OHTANI B,UOSAKI K. Fabrication and characterization of CdS-nanoparticle mono- and multilayers on a self-assembled monolayer of alkanedithiols on gold[J]. J Phys Chem B,1998,102(9):1571-1577.