A platinum nanocatalyst prepared from grape residue and its hydrogen production method are described. The platinum nanocatalyst is prepared by the following steps: 1) drying grape residue and grinding it into powder; 2) extracting grape residue powder and water by mixing, centrifuging and filtering to obtain grape residue water extract and water extract. Solid botanical substances were obtained by freeze-drying. 3) Platinum nanosol was prepared by mixing the solid botanical substances of grape residue water extract with water and then reacting with chloroplatinic acid solution. The invention also includes a method for producing hydrogen by using platinum nano catalyst prepared from grape wine residue. The invention uses grape residue as raw material with low cost, conforms to the idea of low resource and high value, has simple process, no other chemical reagents, green environmental protection, good hydrogen production effect and good catalyst stability, and has good application prospect in the field of photocatalysis.
【技术实现步骤摘要】
一种利用酿酒葡萄残渣制备的铂纳米催化剂及其制氢方法
本专利技术涉及一种铂纳米颗粒及其应用,具体涉及一种利用酿酒葡萄残渣制备的铂纳米催化剂及其制氢方法。
技术介绍
随着化石燃料的日益枯竭,寻找新型可替代能源已成为全球科学家的关注热点。普通化石燃料在燃烧过程中会产生二氧化硫、一氧化碳、一氧化氮、二氧化碳等气体,对环境造成严重损害,而氢能源的燃烧效率高,燃烧产物只有水,不会对环境造成污染,且属于可再生能源,因此是理想的替代能源。光催化分解水制氢是利用太阳能分解水生成氢气,是最理想、最经济的制备方法,对人类社会的发展具有重要意义。在光催化产氢中,催化剂的选择至关重要,而通常的光催化产氢方法中,催化剂的制备需要高温煅烧、水热处理等过程,制备步骤繁琐且耗能高。因此,探究出一条工艺简单,耗能低的光催化产氢方法具有重要的现实意义。铂纳米是一种优异的催化材料,在光催化领域应用广泛。例如:将二氧化钛修饰的铂催化剂用于光催化降解苯酚等污染物具有显著效果(AnnaGolabiewskaetal.MolecularCatalysis2017,442:154–163),将铂纳米作为助催化剂用于二氧化钛半导体光催化高效产氢(XJiangetal.JournalofMaterialsChemistryA,2015,3(5):2271-2282;2.李书军等,专利号201610808987.9),将铂纳米作为助催化剂用于C3N4光催化产氢体系(郝旭强等.物理化学学报2016,32(10):2581-2592),将铂纳米作为催化剂直接产氢等(LiWangetal.OpticsCommunic ...
【技术保护点】
1.一种利用酿酒葡萄残渣制备的铂纳米催化剂,其特征在于,由以下步骤制备而成:1)将酿酒葡萄残渣晾干,研磨成粉末;2)将酿酒葡萄残渣粉末与水混合提取,离心,过滤,得酿酒葡萄残渣水提液,将水提液冷冻干燥,得固体植物质;3)将酿酒葡萄残渣水提液的固体植物质与水混合后,再与氯铂酸溶液混合反应,制得铂纳米溶胶。
【技术特征摘要】
1.一种利用酿酒葡萄残渣制备的铂纳米催化剂,其特征在于,由以下步骤制备而成:1)将酿酒葡萄残渣晾干,研磨成粉末;2)将酿酒葡萄残渣粉末与水混合提取,离心,过滤,得酿酒葡萄残渣水提液,将水提液冷冻干燥,得固体植物质;3)将酿酒葡萄残渣水提液的固体植物质与水混合后,再与氯铂酸溶液混合反应,制得铂纳米溶胶。2.根据权利要求1所述的利用酿酒葡萄残渣制备的铂纳米催化剂,其特征在于:步骤1)中,将酿酒葡萄残渣研磨后,使用筛子筛得较细粉末。3.根据权利要求1或2所述的利用酿酒葡萄残渣制备的铂纳米催化剂,其特征在于:步骤2)中,酿酒葡萄残渣粉末与水的比例为10-150g/L,其中,酿酒葡萄残渣粉末按质量计算,水按体积计算。4.根据权利要求3所述的利用酿酒葡萄残渣制备的铂纳米催化剂,其特征在于:步骤2)中,混合提取过程的温度为20-90℃,时间为0.5-35h。5.根据权利要求1或2所述的利用酿酒葡萄残渣制备的铂纳米催化剂,其特征在于:步骤3)中,酿酒葡萄残渣水提液的固体植物质与...
【专利技术属性】
技术研发人员:刘海,袁振,王毅敏,
申请(专利权)人:北方民族大学,
类型:发明
国别省市:宁夏,64
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