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Large scale synthesis of CdS nanorods and its utilization in photo-catalytic H_2 production

机译：CdS纳米棒的大规模合成及其在光催化H_2生产中的应用

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CdS nanorods along with nanostrips and plates have been prepared on a large scale by the solvothermal route using the precursor cadmium oxalate under mild conditions with ethylene glycol as the solvent and (NH_4)_2S as the sulfiding agent, without using catalysts, surfactants or template. The aspect ratio of the rods varied from 3 to 30. Characterization has been done by TEM, HR-TEM, EDX, HR-SEM, XRD, BET surface area, UV-vis absorption, photoluminescence and fluorescence studies. Photo-catalytic H2 production activity was tested with as-synthesized CdS, calcined CdS, noble metal loaded CdS and for bulk CdS. The nanorods being formed are used as such for H2 production. The as-synthesized CdS is found to have very good H2 production capacity compared to that of the bulk CdS. Upon Pt loading much enhanced activity was observed in the rate of hydrogen production.
机译：CdS纳米棒以及纳米带和平板已经通过溶剂热途径使用草酸镉前驱体在温和的条件下以乙二醇为溶剂，以（NH_4）_2S为硫化剂，而无需使用催化剂，表面活性剂或模板来大规模制备。棒的长宽比为3到30。通过TEM，HR-TEM，EDX，HR-SEM，XRD，BET表面积，UV-vis吸收，光致发光和荧光研究完成了表征。用合成的CdS，煅烧的CdS，负载有贵金属的CdS和大量CdS来测试光催化H2的生产活性。所形成的纳米棒原样用于生产H2。与合成的CdS相比，发现合成后的CdS具有非常好的氢气生产能力。负载铂后，观察到氢气产生速率的活性大大增强。

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