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All Journal Jurnal Kimia Riset Journal Education And Islamic Studies
Nur Hamid
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Religion Chemistry Education

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ZEOLITIZATION OF COAL WASTE AS Cu(II) ION ADSORBENT Nur Hamid; Daniel Tarigan; Chairul Saleh
Jurnal Kimia Riset Vol. 7 No. 2 (2022): December
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v7i2.34281

Abstract

TZeolization of coal waste was carried out as an adsorbent for Cu(II) ions. Fly ash tailings were collected from Lati Steam Power Plant (SPP) Berau and tested using SEM instruments, X-ray diffraction and AAS. Synthetic zeolites are prepared by hydrothermal reaction under alkaline and alkaline conditions. Characterization of the synthetic zeolite using SEM has formed a zeolite material with a pore size >10 µm and shows an increase in the amount of Na from 3.06% to 11.82%. XRD results show that Na-P1 zeolite is formed at the main top of 2θ16, 30, 33, 10 and 40, 80, and the relative intensities are 34, 31 and 36, respectively. In addition, elemental materials such as silica and mullite are continuously formed on the main top of 2θ26.50 and 26.10, the relative strength of silica is 100, and the relative strength of mullite is 57.9. The optimum adsorption capacity of zeolite for maximum copper ion was 80.330% at pH=4, 97.958% at 150 mg adsorbent weight, and 94.550% at 50 min contact time. The formation of these new materials significantly improved the adsorption capacity of fly ash under optimal conditions of pH = 4, sorbent weight of 150 mg, and contact time of 50 min.
Homeschooling: Sebuah Model Pendidikan Alternatif Berbasis Keluarga Sadiyah Sadiyah; Anis Setiyanti; Mukti Ali; Nur Hamid; Wildan Syauqi
Journal Education And Islamic Studies Vol 1 No 2 (2023): Bulan Oktober 2023
Publisher : Institut Agama Islam Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55062//JEDIES.2023.v1i2.332/4

Abstract

Homeschooling is an alternative approach to education that is currently a topic of extensive discussion within the community, among parents, and among educational professionals. This discussion often revolves around concerns related to how children socialize when they are educated at home. In homeschooling, parents take on the responsibility for their child's education and are directly involved in the teaching process. Research indicates that homeschooling is gaining traction in Indonesia due to a lack of trust in formal schools. This lack of trust is rooted in concerns about constantly changing curricula, perceived burdens on students, a sense that children are treated as objects rather than active learners, limitations in nurturing children's creativity and intelligence, as well as emotional, moral, and spiritual considerations. Additionally, parents are worried about the negative external influences their children might encounter and express dissatisfaction with the formal school system. However, one notable drawback of homeschooling is that it tends to result in lower levels of horizontal socialization, meaning that homeschooled students may have limited exposure to a socially diverse and pluralistic environment. They are more likely to be isolated from broader social interactions. This study takes the form of a case study, and its main objective is to describe and understand the perceptions and backgrounds of students who participate in homeschooling, as well as to explore the challenges and issues associated with this educational approach.
Co-Authors Anis Setiyanti Chairul Saleh Daniel Tarigan Mukti Ali Sadiyah Sadiyah Wildan Syauqi