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Pengaruh Jenis Aktivator Dan Konsentrasi Terhadap Daya Jerap Sekam Padi Sebagai Adsorben Methylene Blue

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ABSTRACT
Rice husk is an organic material that has a high lignocellulose content, making it
potential for use as an adsorbent. One method of preparing adsorbents is through
activation with Sodium Hydroxide (NaOH), Phosphoric acid (H3PO4), and without
activation. The aim of this research is to study the effect of varying concentrations
of NaOH and H3PO4 as activators on the adsorption capacity and effectiveness of
rice husk. The activation of rice husk adsorbent totaling 5 grams was carried out
by contacting the rice husk adsorbent with NaOH 0.5 N, 1 N, 1.5 N, and 2 N, and
H3PO4 0.5 N, 1 N, 1.5 N, and 2 N for 6 hours. Then, the rice husk was washed until
the pH of the rice husk became normal, and the rice husk was used as an adsorbent
to reduce color waste from Methylene Blue with a volume of 100 mL of Methylene
Blue and a mass of 1 gram of rice husk adsorbent. The research results showed that
the highest adsorption capacity and adsorption effectiveness were obtained in the
non-activated sample, which was 0.962 mg/g and 96%, in the NaOH activated
sample, which was 0.723 mg/g and 72%, and in the H3PO4 activated sample, which
was 0.979 mg/g and 97%. The IR spectrum of rice husk with various types of
activators demonstrated the presence of functional groups –OH (hydroxyl group),
C – H (aliphatic), and Si –O–Si (silica).
Keywords: adsorption, activation, adsorption capacity, effectiveness, functional
groups, methylene blue, and rice husk.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2207036158

Penerbit

Pekanbaru : Universitas Riau – F.TEKNIK – kimia., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2207036158

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

daus

Versi lain/terkait

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