氨气沉淀法制备碱式硝酸铜及其形貌机理研究

人工晶体学报 ›› 2023, Vol. 52 ›› Issue (3): 536-545.

• 研究论文 • 上一篇

氨气沉淀法制备碱式硝酸铜及其形貌机理研究

王新安¹, 范天博^1,2,3, 赵一波¹, 刘森¹, 郭洪范^1,2, 李雪^1,2,3

1.沈阳化工大学,辽宁省化工应用技术重点实验室,沈阳 110142;
2.沈阳化工大学,辽宁省镁钙无机功能材料工程研究中心,沈阳 110142;
3.沈阳化工大学,沈阳市镁钙资源利用技术重点实验室,沈阳 110142

收稿日期:2022-11-21 出版日期:2023-03-15 发布日期:2023-04-06
通信作者: 范天博,博士,副教授。E-mail:eftb@163.com
作者简介:王新安(1998—),男,辽宁省人,硕士研究生。E-mail:dxzya@icloud.com
基金资助:
国家自然科学基金(61102041);国家重点研发计划(2020YFC1909300);辽宁省教育厅项目(LJKZ0431,L2013169);辽宁省高校创新团队支撑计划(2013010);国家科技支撑计划(2013BAB09B01);辽宁省精细化工协同创新中心资助项目;辽宁省自然科学基金(201602582);辽宁省高等学校创新人才支持计划(LR2018078);辽宁省自然科学基金材料联合基金(20180510007);辽宁省自然科学基金指导计划(2019ZD0075);菱镁固废化工材料高值利用技术与基地集成示范(2020YFCI909300)

Preparation and Morphology Mechanism of Basic Copper Nitrate by Ammonia Precipitation

WANG Xin’an¹, FAN Tianbo^1,2,3, ZHAO Yibo¹, LIU Sen¹, GUO Hongfan^1,2, LI Xue^1,2,3

1. Liaoning Key Laboratory of Chemical Application Technology, Shenyang University of Chemical Technology, Shenyang 110142, China;
2. Liaoning Engineering Research Center for Magnesium and Calcium Inorganic Functional Materials, Shenyang University of Chemical Technology, Shenyang 110142, China;
3. Shenyang Key Laboratory for the Utilization Technology of Magnesium and Calcium Resources, Shenyang University of Chemical Technology, Shenyang 110142, China

Received:2022-11-21 Online:2023-03-15 Published:2023-04-06

摘要/Abstract

摘要： 本文以硝酸铜为原料,采用氨气沉淀法制备了多种形貌的碱式硝酸铜。研究了反应过程中温度、通氨时间和通氨速率对产品微观形貌和产品收率的影响,在最佳反应条件,即反应时间40 min、反应温度90 ℃、通氨速率500 mL/min时,产品收率达到50%,产品形貌为类六方片状,分散性好,粒径分布接近于正态分布。在产品中发现由纳米级碱式硝酸铜颗粒紧密排布而成的二维纳米网状结构,上面分布有纳米级微孔。采用Morphology及CASTEP程序对碱式硝酸铜生长习性进行理论分析,计算结果与实验吻合,由温度引起的(001)晶面显露程度变化是导致宏观形貌不规则的重要因素。

关键词: 硝酸铜, 碱式硝酸铜, 氨气沉淀法, 纳米结构, 形貌

Abstract: Using copper nitrate as raw material, basic copper nitrate with various morphologies were prepared by ammonia precipitation method. The effects of temperature, ammonia-passing time and ammonia-passing rate on the microscopic morphology of the product and product yield during the reaction were studied. Under the optimal reaction conditions, that is, the reaction time of 40 min, the reaction temperature of 90 ℃, and the ammonia passing rate of 500 mL/min, the product yield reaches 50%, and the product morphology is hexagonal flake-like, with good dispersibility and the particle size distribution is close to the normal distribution. It is found in the product that a two-dimensional nano-network structure formed by the close arrangement of nano-scale basic copper nitrate particles, with nano-scale micropores distributed in it. The Morphology and CASTEP program were used to theoretically analyze the growth habit of basic copper nitrate, the calculated results are consistent with the experimental results, the change of (001) crystal surface exposure caused by temperature is an important reason for the irregular macroscopic morphology.

Key words: copper nitrate, basic copper nitrate, ammonia precipitation, nano-structure, morphology

中图分类号:

TQ131.2⁺1

王新安, 范天博, 赵一波, 刘森, 郭洪范, 李雪. 氨气沉淀法制备碱式硝酸铜及其形貌机理研究[J]. 人工晶体学报, 2023, 52(3): 536-545.

WANG Xin’an, FAN Tianbo, ZHAO Yibo, LIU Sen, GUO Hongfan, LI Xue. Preparation and Morphology Mechanism of Basic Copper Nitrate by Ammonia Precipitation[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2023, 52(3): 536-545.

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氨气沉淀法制备碱式硝酸铜及其形貌机理研究

Preparation and Morphology Mechanism of Basic Copper Nitrate by Ammonia Precipitation

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