Inovasi metode pembelajaran di dalam laboratorium telah mengalami perkembangan sangat pesat. Salah satu inovasi tersebut melalui penggunaan kelas virtual laboratorium dalam kelas IPA, seperti halnya pada kelas pemisahan kimia. Tujuan dari penelitian ini adalah (1) menciptakan kreasi media pembelajaran Virtual Laboratory pada praktikum pemisahan kimia terintegrasi android untuk menunjang pembelajaran praktikum, (2) mendeskripsikan uji validitas dan keterbacaan mengenai kreasi media pembelajaran Virtual Laboratory pada praktikum pemisahan kimia terintegrasi telefon pintar. Metode pengembangan yang dipakai yaitu 4-D (four-D). Data yang didapat berupa data kualitatif dan kuantitatif. Data kualitatif berupa saran/masukan dari validator dan data kuantitatif berupa angket validasi dan keterbacaan. Hasil validasi menunjukkan bahwa validasi materi sebesar 95% (sangat layak), validasi media 88,5% (sangat layak). Selain itu, hasil uji coba diperoleh sebesar 83,5% (sangat layak). Secara praktis, media yang telah dikembangkan sangat bermanfaat untuk menunjang pembelajaran praktikum.
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<p>Industrial wastewater contains non-biodegradable dyes that are highly toxic to humans and aquatic life. As solution from photocatalytic degradation, TiO<sub>2</sub> is one of the effective photocatalysts for wastewater degradation, but it has low adsorption power. To overcome this deficiency, this study synthesized a new photocatalyst by Fe-TiO<sub>2</sub>/zeolite H-A. The photocatalyst was successfully synthesized by the impregnation method and was systematically characterized by XRD, XRF, SEM, FT-IR and UV-Vis DRS. XRD diffractogram at 2θ = 25.3° showed anatase phase of the photocatalyst. SEM results showed a rough and soft surface with a size of 491.49 nm. FT-IR analysis obtained the zeolite-A characteristic band, vibration of Ti-O-Ti groups and the vibration of the Fe-O group. The bandwidth of the band gap was 3.16 eV. The photocatalytic efficiency of methylene blue degradation reached 89.58% yield with optimum conditions: irradiation time of 50 min, pH 9 and concentration of methylene blue about 20 mg/L. Fe-TiO<sub>2</sub>/zeolite H-A as a new photocatalyst can be an alternative photocatalyst to purify methylene blue.</p>
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Youth life is closely related to spiritual activity. The phenomenon that is still encountered is Hubbu Ilahi, or the love attitude of Allah SWT. This phenomenon is presumed that adolescents only state and do not know the consequences of their attitudes. So, this study aims to determine the perceptions of today's adolescents on the phenomenon of Hubbu Ilahi. This research is descriptive qualitative research with a survey research method. This study used a purposive random sampling technique to 39 adolescents. Data collection used a questionnaire with the google form platform. Then, the data were analyzed using: data presentation, data reduction, and concluding. The results showed that adolescent respondents stated the consistency of love of the Quran, love of Rasulullah (SAW), love of the Prophet's Sunnah, and love of the Akhirat life. However, the busyness of the world blocks the proven proof of love. The analysis concluded that only 7.7% of adolescents fit Hubbu Ilahi's criteria.
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