Fabrication of Interlayer-free P123 Caronised Template Silica Membranes for Water Desalination: Conventional Versus Rapid Thermal Processing (CTP vs RTP) Techniques

1st International Symposium of Indonesian Chemical Engineering 2018

Elma, M.^1 ; Setyawan, H.^2 ; Rahma, A.^1 ; Pratiwi, A.E.^1 ; Rampun, E.L.A.^1

Chemical Engineering Department, University of Lambung Mangkurat, Banjarbaru, South Kalimantan

70714, Indonesia^1

Chemical Engineering Department, Institute of Technology Sepuluh November, Jalan Raya ITS, East Java, Sukolilo, Surabaya

60111, Indonesia^2

关键词: Comparison techniques;    Dwelling time;    Energy and cost;    Pluronic P123;    Silica membrane;    Templating agents;    Tetraethyl orthosilicates;    Water desalination;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/543/1/012076/pdf
DOI  :  10.1088/1757-899X/543/1/012076

来源: IOP

【 摘 要 】

This work demonstrates the comparison techniques between conventional and rapid thermal processing (CTP Vs RTP). It is to fabricate the interlayer-free P123 carbonised template silica membranes. The aim of this work is to understand the performance of fabricated membranes for water desalination. The silica sols pH 6 were prepared from a two acid-base catalyzed sol gel method by applying tetraethyl orthosilicate (TEOS) as the precursor. Triblock copolymer of Pluronic P123 was used as the templating agent and mixed homogenously with silica sols. The mixtures were calcined in two method called CTP and RTP. CTP is a slow calcination and takes 4 hours with 1 °C min-1 for dwelling time. On the other hand, RTP is rapid technique calcined in air (1 h without dwelling time). CTP confirms higher surface area (50 % higher), porosity (34 % higher) and thinner (60 %) than RTP. RTP technique is supposed to save time, energy and cost during membranes fabrication.