Abstract—

We have studied the effect of the nature of the alkaline agent (NH₄OH, NaOH, (NH₄)₂CO₃, and Na₂CO₃) on the specific surface area, size, and shape of zinc oxide particles prepared via zinc nitrate precipitation from aqueous and polymer media, followed by thermal decomposition of the precipitates. The precipitation process with the use of NH₄OH and NaOH in polyacrylamides has been shown to be favorable for the formation of large hexagon particles, which were larger (up to 1500 nm in size) in the case of NH₄OH. The largest specific surface area (up to 98 m²/g) and the smallest particle size (~20 nm) were offered by the sample prepared via thermal decomposition of the products of reaction between zinc nitrate and ammonium carbonate.

中文翻译：

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碱剂性质对沉淀法制备氧化锌微观结构和性能的影响

摘要-

_{我们研究了碱性试剂（NH 4} OH、NaOH、(NH ₄ ) ₂ CO ₃和Na ₂ CO ₃ ）的性质对通过锌制备的氧化锌颗粒的比表面积、尺寸和形状的影响。硝酸盐从水和聚合物介质中沉淀出来，然后沉淀物热分解。在聚丙烯酰胺中使用 NH ₄ OH 和 NaOH 的沉淀过程已被证明有利于形成大的六边形颗粒，在 NH 4 OH 的情况下，这些颗粒更大（尺寸高达 1500 nm _）。最大比表面积（可达98 m ²/g) 和最小粒径 (~20 nm) 是由硝酸锌和碳酸铵之间反应产物的热分解制备的样品提供的。